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Home My WebLink About722 Granite Springs - 210715303003Eted@excavatevail.com July 24th, 2019 Mr. Lucien O’Kelley 1792 Winloop St, Suite 504 Denver, CO. 80202 RE: Final approval of the: Septic System Installation, OWTS-11-17-18117 Property location: 722 Granite Springs, Edwards - Eagle Area. Mr. O’Kelley: This letter is to inform you that the above-referenced, OWTS-11-17-18117 permit, has been inspected and finalized. This OWTS permit was approved and sized to serve a four (4) bedroom residence. Additional information about the maintenance your septic system needs can be accessed through our website links, provided on the Environmental Health Department’s septic system resource page. Be aware that changes in the use of your property or alterations of your building may require commensurate changes to, or relocation of, your septic system . Landscape features, trees with tap roots, irrigation systems and parking areas above the soil treatment area can cause premature system failure. It is equally important that you notice and immediately repair dripping faucets and hissing toilets as this will certainly cause the system to fail. If you have any questions regarding this information, please contact us at (970) 328-8755 and reference the OWTS septic permit number. Best Regards, Giovanna Harkay. Administrative Fiscal Tech IV Attachments: Certification Letter and Design – Septic System Flyer – Final Letter PUBLIC HEALTH & ENVIRONMENT (970) 328-8755 FAX: (970) 328-8788 Environment@eaglecounty.us RAYMOND P. MERRY, REHS Manager There is no other warranty either expressed or implied. ! G 722 Granite Springs, Edwards, Eagle County, Colorado G Lot 6, Block 5, Cordillera, Filing No. 34 G There are no structures on the property G There are no wells on the property. The lot is serviced by Cordillera Metro. G G The topography of the property is moderate. The proposed soil treatment area is located northeast of the proposed building site. G Two profile holes were excavated: PROFILE HOLE #1 0 to 6" topsoil 6" to 12" blocky clay, sandy dark brown 1 to 4.5 feet yellowish-brown, sandy clay 4.5 to 6 feet light brown, sandy clay 6 to 8 feet yellowish-brown, sandy-gravelly clay with some cobbles and boulders No Ground Water Encountered LTAR = 0.15 gpd/sf at 2 feet PROFILE HOLE #2 0 to 6 inches topsoil 0.5 to 2 feet blocky clay, gravelly, dk. brown 2 to 4 feet brown, gravelly clay with angular rocks 4 to 4.5 feet reddish-brown, hard clay 4.5 to 7.5 feet yellowish-brown, clayey sand 7.5 to 8 feet light brown, sandy clay, sl. moist No Ground Water Encountered LTAR = 0.15 gpd/sf at 2.5 feet G ! G The proposed leachfield site is located on a foot slope. G The topography of the proposed leachfield site is moderate. G The vegetation of the proposed leachfield site consisted of grass for the most part and aspen and pine forest on part of the east side. The surrounding vegetation was similar. G There are no natural and cultural features on the property. G Presently the property is used as a residential subdivision. Based on available records, previously it was used for livestock grazing. ! G G Two profile holes were excavated and soil samples for tactile test were taken from both. ! G This site evaluation was completed by Luiza Petrovska, PE, of LKP Engineering, Inc. LKP Engineering, Inc. Is located at 275 Main St., Suite C-104, Edwards, Colorado. The phone number is 970-390-0307 and Luiza=s email is luiza@lkpeng.com G July 14, 2017. G Attached G Soil Treatment Area (STA) to building, 69'+, building to septic tank 33+, STA to property lines 50'+, septic tank to STA 50’+. G : No well, pond, creek, gulch or cut bank, From STA to restrictive layer: Mound system was designed due to hard clay and the low LTAR in both profile holes. G # # # # # # # G Forest clearing for the mound system. G None known G Excavation wasn’t difficult with a large trackhoe Pump Selection for a Pressurized System - Single Family Residence Project 722 Granite Springs Parameters Discharge Assembly Size Transport Length Transport Pipe Class Transport Line Size Distributing Valve Model Max Elevation Lift Manifold Length Manifold Pipe Class Manifold Pipe Size Number of Laterals per Cell Lateral Length Lateral Pipe Class Lateral Pipe Size Orifice Size Orifice Spacing Residual Head Flow Meter 'Add-on' Friction Losses 1.50 40 40 1.50 None 6 9 40 1.50 6 24 40 1.00 5/32 3 3 None 0 inches feet inches feet feet inches feet inches inches feet feet inches feet Calculations Minimum Flow Rate per Orifice Number of Orifices per Zone Total Flow Rate per Zone Number of Laterals per Zone % Flow Differential 1st/Last Orifice Transport Velocity 0.52 54 28.4 6 1.8 4.5 gpm gpm % fps Frictional Head Losses Loss through Discharge Loss in Transport Loss through Valve Loss in Manifold Loss in Laterals Loss through Flowmeter 'Add-on' Friction Losses 2.4 1.9 0.0 0.1 0.2 0.0 0.0 feet feet feet feet feet feet feet Pipe Volumes Vol of Transport Line Vol of Manifold Vol of Laterals per Zone Total Volume 4.2 0.9 6.5 11.6 gals gals gals gals Minimum Pump Requirements Design Flow Rate Total Dynamic Head 28.4 13.6 gpm feet 0 1020304050607080 0 20 40 60 80 100 120 140 160 Net Discharge (gpm) PumpData PF5005 High Head Effluent Pump 50 GPM, 1/2HP 115/230V 1Ø 60Hz, 200/230V 3Ø 60Hz Legend System Curve: Pump Curve: Pump Optimal Range: Operating Point: Design Point: Plant 102_01202-Eagle Product 14111-Gypsum 1/4" Concrete Sand Sample No 1085150023 Date Sampled 06/12/2019 13:15 Sampled By Production Personnel Type Readymix Sample Sample Information Method Stockpile Split Sample Resample Sample #729 Test Note 1085150023CDOT Fine AggregateSpecification Gradation Results GJ Main Lab PersonnelTested ByDate Completed 06/17/2019 13:15 Moist Mass 1295.10 Dry Mass 1281.00 Wash Mass 1254.20 Moisture % 1.1 Wash Loss % 2.1 Unit g Sieve Mass Retained Cum Mass Retained % Passing Target Comment% Retained Specification Ind % Retained Procedure 1/2" (12.5mm) 0.00 0.00 10000 3/8" (9.5mm) 0.00 0.00 1000 100-1000 #4 (4.75mm) 5.40 5.40 1000 95-1000 #8 (2.36mm) 132.10 137.50 8911 80-10010 #16 (1.18mm) 252.10 389.60 7030 50-8520 #30 (0.6mm) 327.10 716.70 4456 25-6026 #50 (0.3mm) 330.50 1047.20 1882 10-3026 #100 (0.15mm) 179.00 1226.20 496 2-1014 #200 (75µm) 25.20 1251.40 2.397.7 0-32.0 Pan 2.50 1253.90 0.0100.02.3 Gradation Test With Sieve Chart Report CRH Americas Materials (AMAT)StonemontQC 06/28/2019 July 15,2019 To Whom It May Concern: We have been to the following site(s): 722 Granite Springs Trail,Edwards Pump startup has been completed. We have verified that the system was started properly.The System went through several cycles with no issues. Sincerely, Jerry Fleck Service Manager GRADATION ANALYSIS TEST LABORATORY TEST REPORT DATA Laboratory Client: Location / Plant: Sample / Product: Sample Date: Lab Test Date: Job Number: SIEVE SIEVE OPENING IN MILLIMETERS PERCENT PASSING THRU SIEVE 3"75 100.0 1.5 37.5 100.0 3/4"19 100.0 3/8"9.5 100.0 No. 4 4.75 100.0 No. 8 2.36 89.0 No. 16 1.18 70.0 No. 30 0.6 44.0 No. 50 0.3 18.0 No. 100 0.15 4.0 No. 200 0.075 2.3 GRADATION RESULTS COMPARED TO PREFERRED AND SECONDARY SAND FILTER SPECIFICATIONS Value Units Preferred Sand Value Pass / Fail Preferred Sand Secondary Sand Value Pass / Fail Secondary Sand 0.96 millimeters 0.214 millimeters 0.25 to 0.60 FAIL 0.15 to 0.60 PASS 4.47 unitless ratio < or = 4.0 FAIL < or = 7.0 PASS 2.3 millimeters < or = 3 PASS < or = 3 PASS Effective Size - D10 - Diameter that 10 percent of the sample is finer than. ENTER INFORMATION IN BLUE CELLS Production Personnel 102_01202-Eagle 14111-Gypsum 1/4" Concrete Sand 06/12/2019 Uniformity Coefficient (D60 / D10) Percent passing thru #200 Sieve Sample #729 Parameter D60 - Diameter that 60 percent of the sample is finer than. 0 10 20 30 40 50 60 70 80 90 100 0.01 0.1 1 10 100Percent Passing SieveDiameter of Particle in Millimeters Plot of Gradation Analysis 3"1.5"3/4"3/8"#4#8#30#50#100#200 #16 J:\_WP X4-LKP\_2017\17-3184Weber722Granite\OSI-Redesign\Sand Gradation Analysis SpreadsheetUnited sandand Gravel6-12-19.xlsx